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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Diss Factsheets

Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Test procedure in accordance with national standard methods (as cited in OCED SIDS, Dinitrotoluene (isomer mixture), CAS No. 25321-14-6, 2004). Relevant information on the tested substance (e.g. purity) and on test concentration is missing.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1992

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Japanese Industrial Standard (JIS K 0102-1986-71) "Testing methods for industrial wastewater
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Dinitrotoluene
EC Number:
246-836-1
EC Name:
Dinitrotoluene
Cas Number:
25321-14-6
Molecular formula:
C7H6N2O4
IUPAC Name:
Reaction mass of 1-methyl-2,4-dinitrobenzene and 2-methyl-1,3-dinitrobenzene
Details on test material:
- Name of test material (as cited in study report): 2,4/2,6-Dinitrotoluene (technical mixture)
- Analytical purity: no data

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Oryzias latipes
Details on test organisms:
TEST ORGANISM
- Common name: Orange-red killifish
- Source: Nakashima fish farm, Daimyojin Nagasu-cho Tamana-gun Kumamot 969-01 Japan
- after external desinfection, the fish were reared in a flow-through system for 3-5 weeks
- Water temperature, pH, dissolved oxygen were continuously measured
- Total hardness, COD, chloride and other parameters were measured exery 6 months

ACCLIMATION
- fish were reared in an acclimatization tank for 28 d at 24°C

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
48 h

Test conditions

Test temperature:
25+/-2°C
Nominal and measured concentrations:
no data
Details on test conditions:
TEST SYSTEM
- Test vessel: 4 L round glass vessels
- No. of organisms per vessel: 10
- No. of vessels per concentration (replicates): 1

TEST MEDIUM / WATER PARAMETERS
- Water was groundwater from the Kurume Research Laboratories

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
27 mg/L
Nominal / measured:
nominal

Applicant's summary and conclusion